Question

Answer as much as possible

Answer 1

20. 3n + 2
21. 0.5n - 9
22. n - 9^2
23. |-16| + n
24. |-8 - 2n|
25. n(9 + 3)
26. n(22 - 5)
27. n(4 - 3)
28. 7(n + 3)
29. (-19 + n)/10
30. (2 + n)/4